Bluetooth: remove private members from BluetoothAdapter

device/bluetooth/bluetooth_adapter.h

Index: device/bluetooth/bluetooth_adapter.h
diff --git a/device/bluetooth/bluetooth_adapter.h b/device/bluetooth/bluetooth_adapter.h
index f1a7f51114dbc4008e8c585219204ed8c85a5dac..7ea7095c4a11b721c704cd83ff31745aad8dcce3 100644
--- a/device/bluetooth/bluetooth_adapter.h
+++ b/device/bluetooth/bluetooth_adapter.h
@@ -86,10 +86,10 @@ class BluetoothAdapter : public base::RefCounted<BluetoothAdapter> {
 
   // The address of this adapter.  The address format is "XX:XX:XX:XX:XX:XX",
   // where each XX is a hexadecimal number.
-  virtual const std::string& address() const;
+  virtual std::string address() const = 0;
 
   // The name of the adapter.
-  virtual const std::string& name() const;
+  virtual std::string name() const = 0;
 
   // Indicates whether the adapter is initialized and ready to use.
   virtual bool IsInitialized() const = 0;
@@ -157,12 +157,6 @@ class BluetoothAdapter : public base::RefCounted<BluetoothAdapter> {
   BluetoothAdapter();
   virtual ~BluetoothAdapter();
 
-  // Address of the adapter.
-  std::string address_;
-
-  // Name of the adapter.
-  std::string name_;
-
   // Devices paired with, connected to, discovered by, or visible to the
   // adapter. The key is the Bluetooth address of the device and the value
   // is the BluetoothDevice object whose lifetime is managed by the